function fileQueueError(file, errorCode, message) {
    try {
        var imageName = "error.gif";
        var errorName = "";
        if (errorCode === SWFUpload.errorCode_QUEUE_LIMIT_EXCEEDED) {
            errorName = "You have attempted to queue too many files.";
        }

        if (errorName !== "") {
            alert(errorName);
            return;
        }

        switch (errorCode) {
            case SWFUpload.QUEUE_ERROR.ZERO_BYTE_FILE:
                imageName = "zerobyte.gif";
                break;
            case SWFUpload.QUEUE_ERROR.FILE_EXCEEDS_SIZE_LIMIT:
                imageName = "toobig.gif";
                break;
            case SWFUpload.QUEUE_ERROR.ZERO_BYTE_FILE:
            case SWFUpload.QUEUE_ERROR.INVALID_FILETYPE:
            default:
                alert(message);
                break;
        }
        
        alert(message);
        //addImage("images/" + imageName);

    } catch (ex) {
        this.debug(ex);
    }

}

function fileDialogComplete(numFilesSelected, numFilesQueued) {
    try {
        if (numFilesQueued > 0) {
            this.startUpload();
        }
    } catch (ex) {
        this.debug(ex);
    }
}

function uploadVideoProgress(file, bytesLoaded, bytesTotal) {
    try {
        var percent = Math.ceil((bytesLoaded / bytesTotal) * 100);

        var progress = new FileProgress(file, this.customSettings.progressTarget);
        progress.setProgress(percent);
        progress.setStatus("Uploading...");
    } catch (ex) {
        this.debug(ex);
    }
}

function uploadAudioProgress(file, bytesLoaded, bytesTotal) {
    try {
        var percent = Math.ceil((bytesLoaded / bytesTotal) * 100);

        var progress = new FileProgress(file, this.customSettings.progressTarget);
        progress.setProgress(percent);
        progress.setStatus("Uploading...");
    } catch (ex) {
        this.debug(ex);
    }
}

function uploadFileProgress(file, bytesLoaded, bytesTotal) {
    try {
        var percent = Math.ceil((bytesLoaded / bytesTotal) * 100);

        var progress = new FileProgress(file, this.customSettings.progressTarget);
        progress.setProgress(percent);
        progress.setStatus("Uploading...");
    } catch (ex) {
        this.debug(ex);
    }
}

function uploadProgress(file, bytesLoaded) {
    try {
        var percent = Math.ceil((bytesLoaded / file.size) * 100);
        var progress = new FileProgress(file,  this.customSettings.upload_target);
        progress.setProgress(percent);
        if (percent === 100) {
            progress.setStatus("Creating thumbnail...");
            progress.toggleCancel(false, this);
        } else {
            progress.setStatus("Uploading...");
            progress.toggleCancel(true, this);
        }
    } catch (ex) {
        this.debug(ex);
    }
}

function uploadSuccess(file, serverData) {
    try {
        var progress = new FileProgress(file,  this.customSettings.upload_target);
        
        serverData = $.parseJSON(serverData);
        
        if (serverData.error == 0) {
            $('#thumbnail').attr('src', serverData.body.THUMBURL);
            $('#'+this.customSettings.input_target).val(serverData.body.THUMBURL);
            progress.setStatus("Thumbnail Created.");
            progress.toggleCancel(false);
        } else {
            //addImage("images/error.gif");
            progress.setStatus("Error.");
            progress.toggleCancel(false);
            alert(serverData);
        }

    } catch (ex) {
        this.debug(ex);
    }
}

function uploadComplete(file) {
    try {
        /*  I want the next upload to continue automatically so I'll call startUpload here */
        if (this.getStats().files_queued > 0) {
            this.startUpload();
        } else {
            var progress = new FileProgress(file,  this.customSettings.upload_target);
            progress.setComplete(this.customSettings.progressDisplay);
            progress.setStatus("Upload thành công.");
            progress.toggleCancel(false);
        }
    } catch (ex) {
        this.debug(ex);
    }
}

function uploadError(file, errorCode, message) {
    var imageName =  "error.gif";
    var progress;
    try {
        switch (errorCode) {
            case SWFUpload.UPLOAD_ERROR.FILE_CANCELLED:
                try {
                    progress = new FileProgress(file,  this.customSettings.upload_target);
                    progress.setCancelled();
                    progress.setStatus("Cancelled");
                    progress.toggleCancel(false);
                }
                catch (ex1) {
                    this.debug(ex1);
                }
                break;
            case SWFUpload.UPLOAD_ERROR.UPLOAD_STOPPED:
                try {
                    progress = new FileProgress(file,  this.customSettings.upload_target);
                    progress.setCancelled();
                    progress.setStatus("Stopped");
                    progress.toggleCancel(true);
                }
                catch (ex2) {
                    this.debug(ex2);
                }
            case SWFUpload.UPLOAD_ERROR.UPLOAD_LIMIT_EXCEEDED:
                imageName = "uploadlimit.gif";
                break;
            default:
                alert(message);
                break;
        }
        
        alert(message);
        //addImage("images/" + imageName);

    } catch (ex3) {
        this.debug(ex3);
    }

}


function addImage(src) {
    var newImg = document.createElement("img");
    newImg.style.margin = "5px";

    document.getElementById("thumbnails").appendChild(newImg);
    if (newImg.filters) {
        try {
            newImg.filters.item("DXImageTransform.Microsoft.Alpha").opacity = 0;
        } catch (e) {
            // If it is not set initially, the browser will throw an error.  This will set it if it is not set yet.
            newImg.style.filter = 'progid:DXImageTransform.Microsoft.Alpha(opacity=' + 0 + ')';
        }
    } else {
        newImg.style.opacity = 0;
    }

    newImg.onload = function () {
        fadeIn(newImg, 0);
    };
    newImg.src = src;
}

function fadeIn(element, opacity) {
    var reduceOpacityBy = 5;
    var rate = 30;	// 15 fps


    if (opacity < 100) {
        opacity += reduceOpacityBy;
        if (opacity > 100) {
            opacity = 100;
        }

        if (element.filters) {
            try {
                element.filters.item("DXImageTransform.Microsoft.Alpha").opacity = opacity;
            } catch (e) {
                // If it is not set initially, the browser will throw an error.  This will set it if it is not set yet.
                element.style.filter = 'progid:DXImageTransform.Microsoft.Alpha(opacity=' + opacity + ')';
            }
        } else {
            element.style.opacity = opacity / 100;
        }
    }

    if (opacity < 100) {
        setTimeout(function () {
            fadeIn(element, opacity);
        }, rate);
    }
}

function uploadVideoSuccess(file, serverData) {
    try {
        serverData = $.parseJSON(serverData);
        
        if (serverData.error == 0) {
            var progress = new FileProgress(file, this.customSettings.progressTarget);
            progress.setComplete();
            progress.setStatus("Complete.");
            progress.toggleCancel(false);
            //Set videoURL
            $('#'+this.customSettings.input_target).val(serverData.body.FILEURL);
            //Append Video demo
            $('#'+this.customSettings.player_target).html('<a id="video_player" href="'+base_url+serverData.body.FILEURL+'" style="display:block;width:520px;height:330px"></a>');
            //Init flowplayer
            flowplayer("video_player", st_url + "/backend/js/flowplayer/flowplayer-3.2.9.swf", {
                clip:  {
                  autoPlay: false,
                  autoBuffering: true
                }
            });
        } else {
            //addImage("images/error.gif");
            progress.setStatus("Error.");
            progress.toggleCancel(false);
        }
        
    } catch (ex) {
            this.debug(ex);
    }
}

function uploadAudioSuccess(file, serverData) {
    try {
        serverData = $.parseJSON(serverData);
        
        if (serverData.error == 0) {
            var progress = new FileProgress(file, this.customSettings.progressTarget);
            progress.setComplete();
            progress.setStatus("Complete.");
            progress.toggleCancel(false);
            //Set audioURL
            $('#'+this.customSettings.input_target).val(serverData.body.FILEURL);
            //Append Adio demo
            $('#'+this.customSettings.player_target).html('<a id="audio_player" href="'+base_url+serverData.body.FILEURL+'" style="display:block;width:520px;height:30px"></a>');
            //Init flowplayer
            flowplayer("audio_player", st_url + "/backend/js/flowplayer/flowplayer-3.2.9.swf", {
                plugins: {
                    controls: {fullscreen: false, height: 30, autoHide: false}
                },
                clip: {autoPlay: false, autoBuffering: true}
            });
        } else {
            //addImage("images/error.gif");
            progress.setStatus("Error.");
            progress.toggleCancel(false);
        }
        
    } catch (ex) {
            this.debug(ex);
    }
}

function uploadFileSuccess(file, serverData) {
    try {
        serverData = $.parseJSON(serverData);
        
        if (serverData.error == 0) {
            var progress = new FileProgress(file, this.customSettings.progressTarget);
            progress.setComplete();
            progress.setStatus("Complete.");
            progress.toggleCancel(false);
            //Set fileURL
            $('#'+this.customSettings.input_target).val(serverData.body.FILEURL);
            //Append file
            $('#'+this.customSettings.player_target).html('<p class="pdf_icon">'+serverData.body.FILEURL+'</p>');
        } else {
            //addImage("images/error.gif");
            progress.setStatus("Error.");
            progress.toggleCancel(false);
        }
        
    } catch (ex) {
            this.debug(ex);
    }
}
